On-vehicle acoustic amplifier



FIG. 1 is a front, bottom perspective view of an on-vehicle acoustic amplifier showing my new design;

FIG. 2 is a front, top perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side elevational view thereof; and,

FIG. 8 is a right side elevational view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the on-vehicle acoustic amplifier that form no part of the claimed design. 

CLAIM The ornamental design for an on-vehicle acoustic amplifier, as shown and described. 